TCS Company Logical Reasoning Cryptography

If a clock takes 7seconds to strike 7, how long will the same clock take to strike 10?

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TCS Other Question

The Chennai corporation has a particular strategy for assigning numbers for buildings. The Corporation had strict rules that every building should have a number. In T Nagar, a place in Chennai there many buildings were under residential category. For buildings, the Corporation numbered from 1 to 100. For shops, corporation numbered between 150 and 200 only in prime numbers. How many times does the number “6” appear in the building numbers? (40*40* 40-31*31*31)/(40*40+40*31+31*31)=?